<?php
/*
 You may not change or alter any portion of this comment or credits
 of supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit authors.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/

/**
 * Authentification class factory
 *
 * @copyright       The XOOPS Project http://sourceforge.net/projects/xoops/
 * @license         http://www.fsf.org/copyleft/gpl.html GNU public license
 * @package         kernel
 * @subpackage      auth
 * @since           2.0
 * @author          Pierre-Eric MENUET <pemphp@free.fr>
 * @version         $Id: authfactory.php 3616 2009-09-10 20:39:31Z trabis $
 */

defined('XOOPS_ROOT_PATH') or die('Restricted access');

/**
 *
 * @package kernel
 * @subpackage auth
 * @description Authentification class factory
 * @author Pierre-Eric MENUET <pemphp@free.fr>
 * @copyright copyright (c) 2000-2005 XOOPS.org
 */
class XoopsAuthFactory
{
    /**
     * Get a reference to the only instance of authentication class
     *
     * if the class has not been instantiated yet, this will also take
     * care of that
     *
     * @static
     * @return object Reference to the only instance of authentication class
     */
    function &getAuthConnection($uname)
    {
        static $auth_instance;
        if (!isset($auth_instance)) {
            $config_handler =& xoops_gethandler('config');
            $authConfig = $config_handler->getConfigsByCat(XOOPS_CONF_AUTH);

            include_once $GLOBALS['xoops']->path('class/auth/auth.php');

            if (empty($authConfig['auth_method'])) { // If there is a config error, we use xoops
                $xoops_auth_method = 'xoops';
            } else {
                $xoops_auth_method = $authConfig['auth_method'];
            }
            // Verify if uname allow to bypass LDAP auth
            if (in_array($uname, $authConfig['ldap_users_bypass'])) {
                $xoops_auth_method = 'xoops';
            }

            $ret = include_once $GLOBALS['xoops']->path('class/auth/auth_' . $xoops_auth_method . '.php');
            if ($ret == false) {
                return false;
            }

            $class = 'XoopsAuth' . ucfirst($xoops_auth_method);
            if (!class_exists($class)) {
                $GLOBALS['xoopsLogger']->triggerError($class, _XO_ER_CLASSNOTFOUND, __FILE__, __LINE__, E_USER_ERROR );
                return false;
            }
            switch ($xoops_auth_method) {
                case 'xoops':
                    $dao =& XoopsDatabaseFactory::getDatabaseConnection();
                    break;
                case 'ldap':
                    $dao = null;
                    break;
                case 'ads':
                    $dao = null;
                    break;
            }
            $auth_instance = new $class($dao);
        }
        return $auth_instance;
    }
}

?>